The purpose of this study is to solve defects of the existing control strategy long convergence time, sliding mode chattering and so on. For Sensorless Brushless DC motor control strategy, a modified extended Kalman state correction estimation scheme is proposed, and dual mode high-order nonsingular terminal hybrid sliding mode control technology is put forward. TMS320F2812DSP core controller a...

In recent years, underactuated nonlinear dynamic systems trajectory tracking, such as space robots and manipulators with structural flexibility, has become a major field of interest due to the complexity and high computational load of these systems. Hierarchical sliding mode control has been investigated recently for these systems; however, the instability phenomena will possibly occur, especia...

Abstract Nonsingular Fixed-time Sliding Mode Control (NFSMC) method is one of the nonlinear control methods which robust against uncertainties and external disturbances. This paper presents an NFSMC to synchronize two similar Willamowski–Rossler reaction chaotic systems. The proposed disturbances; also, it accurate fast method. compared with a Terminal Control. comparison results show that prov...

A novel robust control law with finite time convergence for rigid robotic manipulators is proposed in this paper. The whole control process is divided into two phases, i.e., the error correction phase and the steady tracking phase. Firstly, a novel time-varying sliding mode control (TVSMC) method is developed in the first phase to ensure the tracking error converge to zero at the desired time. ...

In this study, an adaptive nonsingular terminal sliding mode control technique according to the barrier function is designed for performance improvement and robust stability of nonlinear systems with outdoor disturbances. For reason, a novel surface presented based on states system. The forces system converge from initial conditions zero. Subsequently, non-singular scheme advised purpose finite...

When a permanent magnet synchronous motor runs at low speed, the inverter will output discontinuous current and generate torque ripple; when is high large amount of stator harmonic generates, which affects its speed following ability stability. To ensure fast smooth switching in full domain, this paper proposes nonsingular terminal sliding mode control PMSM based on improved exponential reachin...